feat(tests): Add unit tests for Assert and Utils classes (#70)

Signed-off-by: Christian Tzolov <christian.tzolov@broadcom.com>

mcp/src/test/java/io/modelcontextprotocol/util/AssertTests.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2024-2024 the original author or authors.
+ */
+
+package io.modelcontextprotocol.util;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class AssertTests {
+
+	@Test
+	void testCollectionNotEmpty() {
+		IllegalArgumentException e1 = assertThrows(IllegalArgumentException.class,
+				() -> Assert.notEmpty(null, "collection is null"));
+		assertEquals("collection is null", e1.getMessage());
+
+		IllegalArgumentException e2 = assertThrows(IllegalArgumentException.class,
+				() -> Assert.notEmpty(List.of(), "collection is empty"));
+		assertEquals("collection is empty", e2.getMessage());
+
+		assertDoesNotThrow(() -> Assert.notEmpty(List.of("test"), "collection is not empty"));
+	}
+
+	@Test
+	void testObjectNotNull() {
+		IllegalArgumentException e = assertThrows(IllegalArgumentException.class,
+				() -> Assert.notNull(null, "object is null"));
+		assertEquals("object is null", e.getMessage());
+
+		assertDoesNotThrow(() -> Assert.notNull("test", "object is not null"));
+	}
+
+	@Test
+	void testStringHasText() {
+		IllegalArgumentException e = assertThrows(IllegalArgumentException.class,
+				() -> Assert.hasText(null, "string is null"));
+		assertEquals("string is null", e.getMessage());
+
+		assertDoesNotThrow(() -> Assert.hasText("test", "string is not empty"));
+	}
+
+}

mcp/src/test/java/io/modelcontextprotocol/util/UtilsTests.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2024-2024 the original author or authors.
+ */
+
+package io.modelcontextprotocol.util;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class UtilsTests {
+
+	@Test
+	void testHasText() {
+		assertFalse(Utils.hasText(null));
+		assertFalse(Utils.hasText(""));
+		assertFalse(Utils.hasText(" "));
+		assertTrue(Utils.hasText("test"));
+	}
+
+	@Test
+	void testCollectionIsEmpty() {
+		assertTrue(Utils.isEmpty((Collection<?>) null));
+		assertTrue(Utils.isEmpty(List.of()));
+		assertFalse(Utils.isEmpty(List.of("test")));
+	}
+
+	@Test
+	void testMapIsEmpty() {
+		assertTrue(Utils.isEmpty((Map<?, ?>) null));
+		assertTrue(Utils.isEmpty(Map.of()));
+		assertFalse(Utils.isEmpty(Map.of("key", "value")));
+	}
+
+}